Æolodion, or Æolodicon

ÆOLODION, or ÆOLODICON (also called in Germany Windharmonika), a keyed wind-instrument resembling the harmonium, the tone of which was produced from steel springs. It had a compass of six octaves, and its tone was similar to that of the harmonium. There is some controversy as to its original inventor; most authorities attribute it to J. T. Eschenbach of Hamburg, who is said to have first made it in 1800. Various improvements were subsequently made by other mechanicians, among whom may be...